Github user arina-ielchiieva commented on a diff in the pull request: https://github.com/apache/drill/pull/610#discussion_r86103902 --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/impl/SimpleCastFunctions.java --- @@ -48,14 +46,8 @@ public void setup() { public void eval() { byte[] buf = new byte[in.end - in.start]; in.buffer.getBytes(in.start, buf, 0, in.end - in.start); - String input = new String(buf, com.google.common.base.Charsets.UTF_8).toLowerCase(); - if ("true".equals(input)) { - out.value = 1; - } else if ("false".equals(input)) { - out.value = 0; - } else { - throw new IllegalArgumentException("Invalid value for boolean: " + input); - } + String input = new String(buf, com.google.common.base.Charsets.UTF_8); + out.value = org.apache.drill.exec.expr.BooleanType.get(input).getNumericValue(); --- End diff -- @sudheeshkatkam I can't make static `Map<String, Integer>`, since sometimes we need numeric representation and sometimes bytes. But you are right iteration through the list per each record is too expensive. So I have added static `Map<String, BooleanType>`.
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